body {
  overflow: hidden;
}
#container {
  overflow: hidden;
  position: relative;
}
#container,
#container > div {
  width: 100vw;
  height: 100vh;
}

#container > div {
  position: absolute;
  transition: transform 1s;
}

#container > div:nth-child(1) {
  top: 0px;
  left: 0px;
}

#container > div:nth-child(2) {
  top: 0px;
  left: 100%;
}

#container > div:nth-child(3) {
  top: 0px;
  left: 200%;
}

/* 指示器的部分 */
#divPoints {
  position: fixed;
  bottom: 1rem;
  left: 1rem;
  background-color: rgba(0, 0, 0, 0.5);
  padding: 1rem;
}

#divPoints span {
  display: inline-block;
  border: 0.2rem solid #fff;
  width: 1rem;
  height: 1rem;
  background-color: #fff;
  border-radius: 50%;
  margin: 0.1rem;
}

#divPoints span.active {
  border-color: #ff0000;
}
